point_expression_op< orig, exp1, exp2, POINT_SUB > Class Template Reference

Subtraction operation. More...

Detailed Description

template<typename orig, typename exp1, typename exp2>
class point_expression_op< orig, exp1, exp2, POINT_SUB >

Subtraction operation.

Template Parameters

exp1	expression1
exp2	expression2

Definition at line 443 of file Point_operators.hpp.

#include <Point_operators.hpp>

Public Types
typedef first_or_second_pt< has_coordtype< exp1 >::value, exp1, exp2 >::coord_type	coord_type
	The type of the internal vector.
typedef orig	orig_type
	Original type.
typedef int	has_init
	indicate that init must be called before value
typedef int	is_expression
	indicate that this class encapsulate an expression
typedef orig	return_type
	return type of the expression

Public Member Functions
__device__ __host__	point_expression_op (const exp1 &o1, const exp2 &o2)
	constructor from 2 expressions
__device__ __host__ void	init () const
	This function must be called before value.
template<typename r_type = typename best_conv<typename std::remove_reference<decltype(o1.value(0))>::type, typename std::remove_reference<decltype(o2.value(0))>::type>::type>
__device__ __host__ r_type	value (size_t k) const
	Evaluate the expression at coordinate k.
template<typename T , typename test = typename boost::disable_if_c< std::is_same<T,orig>::value || exp1::nvals != 1 || exp2::nvals != 1 >::type>
__device__ __host__	operator T () const
	conversion of the class to double or float or ...

Static Public Attributes
static const unsigned int	nvals = r_type_dim<exp1::nvals,exp2::nvals,POINT_SUB>::value
	this operation produce a vector as result of size dims

Private Attributes
const exp1	o1
	expression 1
const exp2	o2
	expression 2

Member Typedef Documentation

coord_type

template<typename orig , typename exp1 , typename exp2 >

typedef first_or_second_pt<has_coordtype<exp1>::value,exp1,exp2>::coord_type point_expression_op< orig, exp1, exp2, POINT_SUB >::coord_type

The type of the internal vector.

Definition at line 453 of file Point_operators.hpp.

has_init

template<typename orig , typename exp1 , typename exp2 >

typedef int point_expression_op< orig, exp1, exp2, POINT_SUB >::has_init

indicate that init must be called before value

Definition at line 459 of file Point_operators.hpp.

is_expression

template<typename orig , typename exp1 , typename exp2 >

typedef int point_expression_op< orig, exp1, exp2, POINT_SUB >::is_expression

indicate that this class encapsulate an expression

Definition at line 462 of file Point_operators.hpp.

orig_type

template<typename orig , typename exp1 , typename exp2 >

typedef orig point_expression_op< orig, exp1, exp2, POINT_SUB >::orig_type

Original type.

Definition at line 456 of file Point_operators.hpp.

return_type

template<typename orig , typename exp1 , typename exp2 >

typedef orig point_expression_op< orig, exp1, exp2, POINT_SUB >::return_type

return type of the expression

Definition at line 465 of file Point_operators.hpp.

Constructor & Destructor Documentation

point_expression_op()

template<typename orig , typename exp1 , typename exp2 >

__device__ __host__ point_expression_op< orig, exp1, exp2, POINT_SUB >::point_expression_op ( const exp1 &  o1, const exp2 &  o2  )

inline

constructor from 2 expressions

Parameters

o1	expression1
o2	expression2

Definition at line 476 of file Point_operators.hpp.

Member Function Documentation

init()

template<typename orig , typename exp1 , typename exp2 >

__device__ __host__ void point_expression_op< orig, exp1, exp2, POINT_SUB >::init ( ) const

inline

This function must be called before value.

it calculate the scalar product before return the values

Definition at line 485 of file Point_operators.hpp.

operator T()

template<typename orig , typename exp1 , typename exp2 >

template<typename T , typename test = typename boost::disable_if_c< std::is_same<T,orig>::value || exp1::nvals != 1 || exp2::nvals != 1 >::type>

__device__ __host__ point_expression_op< orig, exp1, exp2, POINT_SUB >::operator T ( ) const

inline

conversion of the class to double or float or ...

Definition at line 510 of file Point_operators.hpp.

value()

template<typename orig , typename exp1 , typename exp2 >

template<typename r_type = typename best_conv<typename std::remove_reference<decltype(o1.value(0))>::type, typename std::remove_reference<decltype(o2.value(0))>::type>::type>

__device__ __host__ r_type point_expression_op< orig, exp1, exp2, POINT_SUB >::value ( size_t  k ) const

inline

Evaluate the expression at coordinate k.

Parameters

k	coordinate

Returns

the evaluate expression at coordinate k

Definition at line 500 of file Point_operators.hpp.

Field Documentation

nvals

template<typename orig , typename exp1 , typename exp2 >

const unsigned int point_expression_op< orig, exp1, exp2, POINT_SUB >::nvals = r_type_dim<exp1::nvals,exp2::nvals,POINT_SUB>::value

static

this operation produce a vector as result of size dims

Definition at line 468 of file Point_operators.hpp.

o1

template<typename orig , typename exp1 , typename exp2 >

const exp1 point_expression_op< orig, exp1, exp2, POINT_SUB >::o1

private

expression 1

Definition at line 446 of file Point_operators.hpp.

o2

template<typename orig , typename exp1 , typename exp2 >

const exp2 point_expression_op< orig, exp1, exp2, POINT_SUB >::o2

private

expression 2

Definition at line 448 of file Point_operators.hpp.

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The documentation for this class was generated from the following file:

• openfpm_data/src/Space/Shape/Point_operators.hpp